I can't believe it's been almost a week since I wrote Batch Capacity Planning, Part 1 - CPU . Where did the time go? Re-reading it I'm struck by the overwhelming theme of Batch's unpredictability and lumpiness. This is true of memory, as well, but to a much...

Today I want to talk about the z/VSE options you have to access virtual storage. From a one address space system with up to 16 MB (megabyte) virtual storage, VSE grew to an environment with multiple address spaces of up to 16 MB each. In 1990 each...